The first traits in Steal a Brainrot were Taco and Nyan, both introduced together with Update 5 on June 28, 2025 — the update that created the entire trait system. Taco came from the taco cannon that fires tacos onto brainrots on the conveyor; Nyan came from the Nyan Cat event that gives a rainbow trail. Since then the game has grown to over 56 documented traits across seven distinct "eras".
Traits arrived about six weeks after the game launched, and they changed everything. Before Update 5, the only way to boost a brainrot's income was a mutation — one per brainrot, take it or leave it. Traits introduced something new: stackable modifiers that pile on top of a mutation and on top of each other. A single brainrot can carry a taco hat, a rainbow trail and crab claws all at once, each adding its own multiplier. That single design decision is why trait farming during Admin Abuse became the endgame it is today.
📜 THE SEVEN TRAIT ERAS
Why the first traits still matter today
Taco — the original trait — has had the most dramatic story of any. It started as a fun cosmetic, but in the current trade meta a Taco trait can actually reduce a brainrot's value by around 70% if the buyer doesn't want it. Our trade calculator even has a dedicated Taco preference toggle for exactly this reason. Nyan, its launch twin, remains a solid mid-tier trait. Not bad for two effects that started as a taco cannon and a flying rainbow cat.
FAQ
What was the first trait in Steal a Brainrot?
Taco and Nyan, released together on June 28, 2025 with Update 5 — the update that introduced the trait system itself. If you have to pick a single "first", the Taco cannon is the one most players remember seeing first.
How many traits exist now?
Over 56 documented traits as of July 2026, and the number keeps growing with nearly every major update. See the full traits page for every multiplier and how to get each one.
What's the best trait to farm right now?
For income, the OG traits: Strawberry (8x), Meowl (7x), John Pork (6.5x). For accessibility, ritual traits like Paint (5x) and Matteo Hat can be farmed on demand with an organized group during Admin Abuse.
Can old traits still be obtained?
Most seasonal traits (Halloween, Christmas, Eid, 1 Year) only return when their event returns. Weather traits (Wet, Snowy, Comet-struck) are always possible. Retired traits like Rose and 10B can only be obtained by trading for a brainrot that already carries them.